Finding the Fourth Proportional to 10,160,639.84, 14,021,864.16 and 5,577,387.68
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Solution
The fourth proportional to 10,160,639.84, 14,021,864.16 and 5,577,387.68 is: 7,696,894.45
Step by Step Solution
- Step 1: Write the proportion equation
10,160,639.84 : 14,021,864.16 = 5,577,387.68 : x - Step 2: Convert to fraction form
10,160,639.84/14,021,864.16 = 5,577,387.68/x - Step 3: Cross multiply
10,160,639.84x = 14,021,864.16 × 5,577,387.68 - Step 4: Simplify right side
10,160,639.84x = 78,205,372,416,617.55 - Step 5: Solve for x
x = 78,205,372,416,617.55/10,160,639.84 - Step 6: Final answer
x = 7,696,894.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.